/*
 * Copyright (c) 2010, Michael Hengler (developer (at) hengler (dot) de),
 * Nikolaus Moll (developer (at) miblounge (dot) net).
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 * * Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * * Neither the name of the Jombi project nor the
 * names of its contributors may be used to endorse or promote products
 * derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL JOMBI BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 */
package net.miblounge.jombi.impl.widgets.base;

import java.util.List;
import java.util.Vector;

import com.trolltech.qt.core.Qt.Orientation;
import com.trolltech.qt.gui.QPaintEvent;
import com.trolltech.qt.gui.QSplitter;

public class JoSplitPane extends QSplitter {

	public static final int BASE = 100;
	private static final long serialVersionUID = 5117985872625236987L;

	private boolean initialized = false;
	private final double dividerWeight;
	private final double resizeWeight;

	public JoSplitPane(final Orientation orientation, final double dividerWeigth, final double resizeWeight) {
		super();
		this.setOrientation(orientation);
		this.dividerWeight = dividerWeigth;
		this.resizeWeight = resizeWeight;
	}

	private int getSize() {
		final List<Integer> sizes = sizes();
		if (sizes.size() != 2) {
			return 0;
		}

		return sizes.get(0) + sizes.get(1);
	}

	@Override
	protected void paintEvent(final QPaintEvent ev) {
		if (!initialized) {
			final int maxSize = getSize();
			if (maxSize > 0) {
				initialized = true;
				final List<Integer> sizes = new Vector<Integer>(2);

				setStretchFactor(0, (int) (BASE * resizeWeight));
				setStretchFactor(1, (int) (BASE * (1 - resizeWeight)));

				final int firstSize = (int) (dividerWeight * maxSize);
				sizes.add(firstSize);
				sizes.add(maxSize - firstSize);

				setSizes(sizes);
			}
		}
		super.paintEvent(ev);
	}

}
